// (c) Copyright HutongGames, LLC 2010-2013. All rights reserved.

using UnityEngine;

namespace HutongGames.PlayMaker.Actions
{
	[ActionCategory(ActionCategory.AnimateVariables)]
	[Tooltip("Animates the value of a Color Variable FROM-TO with assistance of Deformation Curves.")]
	public class CurveColor: CurveFsmAction
	{
		[RequiredField]
		[UIHint(UIHint.Variable)]
		public FsmColor colorVariable;
		[RequiredField]
		public FsmColor fromValue;
		[RequiredField]
		public FsmColor toValue;
		[RequiredField]
		public FsmAnimationCurve curveR;
		[Tooltip("Calculation lets you set a type of curve deformation that will be applied to otherwise linear move between fromValue.Red and toValue.Rec.")]
		public Calculation calculationR;
		[RequiredField]
		public FsmAnimationCurve curveG;
		[Tooltip("Calculation lets you set a type of curve deformation that will be applied to otherwise linear move between fromValue.Green and toValue.Green.")]
		public Calculation calculationG;
		[RequiredField]
		public FsmAnimationCurve curveB;
		[Tooltip("Calculation lets you set a type of curve deformation that will be applied to otherwise linear move between fromValue.Blue and toValue.Blue.")]
		public Calculation calculationB;
		[RequiredField]
		public FsmAnimationCurve curveA;
		[Tooltip("Calculation lets you set a type of curve deformation that will be applied to otherwise linear move between fromValue.Alpha and toValue.Alpha.")]
		public Calculation calculationA;
		
		
		Color clr;
		
		private bool finishInNextStep = false;
				
		public override void Reset()
		{
			base.Reset();
			
			colorVariable = new FsmColor{UseVariable=true};
			toValue = new FsmColor{UseVariable=true};
			fromValue = new FsmColor{UseVariable=true};
		}

		public override void OnEnter()
		{
			base.OnEnter();
			finishInNextStep = false;
			resultFloats = new float[4];
			fromFloats = new float[4];
			fromFloats[0] = fromValue.IsNone ? 0f : fromValue.Value.r;
			fromFloats[1] = fromValue.IsNone ? 0f : fromValue.Value.g;
			fromFloats[2] = fromValue.IsNone ? 0f : fromValue.Value.b;
			fromFloats[3] = fromValue.IsNone ? 0f : fromValue.Value.a;
			toFloats = new float[4];
			toFloats[0] = toValue.IsNone ? 0f : toValue.Value.r;
			toFloats[1] = toValue.IsNone ? 0f : toValue.Value.g;
			toFloats[2] = toValue.IsNone ? 0f : toValue.Value.b;
			toFloats[3] = toValue.IsNone ? 0f : toValue.Value.a;
			
			curves = new AnimationCurve[4];
			curves[0] = curveR.curve;
			curves[1] = curveG.curve;
			curves[2] = curveB.curve;
			curves[3] = curveA.curve;
			calculations = new Calculation[4];
			calculations[0] = calculationR;
			calculations[1] = calculationG;
			calculations[2] = calculationB;
			calculations[2] = calculationA;
			//call Init after you have initialized curves array
			Init();
		}
		
		public override void OnExit()
		{
				
		}

		public override void OnUpdate()
		{
			base.OnUpdate();
			if(!colorVariable.IsNone && isRunning){
				clr = new Color(resultFloats[0], resultFloats[1], resultFloats[2], resultFloats[3]);
				colorVariable.Value = clr;
			}
			
			if(finishInNextStep){
				if(!looping) {
					Finish();
					if(finishEvent != null)	Fsm.Event(finishEvent);
				}
				
			}
			
			if(finishAction && !finishInNextStep){
				if(!colorVariable.IsNone){
					clr = new Color(resultFloats[0], resultFloats[1], resultFloats[2], resultFloats[3]);
					colorVariable.Value = clr;
				}
				finishInNextStep = true;
			}
		}
	}
}